Shuttle.



4n. H. SAUNDBRS. SHUTTLE.

APPLICATION FILEDl JULY 8,1907.

Patented May 16,1911.

f f i 94 90 Miike/5595:. Evve/mZ-om @E ATS ATN DAVID H. SAUNDERS, 0FGLOUCESTER, MASSACHUSETTS, ASSIGNOR TO MASSACHU- SETTS NET COMPANY, ACORPORATION OF MASSACHUSETTS.

SHUTTLE.

Specification of Letters Patent.

Patented May 16, 1911.

Application filed July S, 1907. Serial No. 382,630.

T o all whom t may concern.'

Be it known that DAviD H. SAUNDERS, of Gloucester', in the county ofEssex and State'of Massachusetts, have invented certain new and usefulImprovements in Shuttles; and hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, forming part of this specification.

This invention has reference to improvements in shuttles andparticularly to shuttles adapted for use in net making machines.

The object of the invention is to so construct a shuttle that the threador twine carried by the bobbin may be subjected at times to retractivestrain.

Another object of the invention is to provide a shuttte with a thread ortwine carrying bobbin and with a spring retracted tension drum.

Other objects of the invention will appear from the followingdescription.

The invention consists in the peculiar construction of the shuttle.

The invention consists in other novel features of construction andcombination of parts as shall hereinafter be more fully described andpointed out in the claims.

Figure 1, represents an obverse side elevation of the improved shuttle,parts of the same being broken away. Fig. 2, represents a sectional viewof the same taken on line 2 2 Fig. 1. Fig. 8, represents a reverse sideelevation of the shuttle, illustrating more particularly the exterior ofthe same.

Similar numerals of reference designate correspondingparts throughout.

As shown in the drawings in its preferred form 5 indicates the main caseof the shuttle having the circular rear end 6 and the tapering forwardend 7 furnished with the nose member 8 in the nature of a hook by reasonof the slot 9. From the main shuttle case 5 and forming part thereof isthe wall 10 which follows the shape of the part 5 and is furnished atits upper portion with the hooks 11 and 12, of which the hook 11 has theinclined edge 13,`- while the lower portion of said wall 10 is furnishedwith the socket 14 open at the reverse side of the shuttle as shown inFig. 3.

On the obverse side of the shuttle, and embraced by the wall 10 are thethread or twine carrying means. Near the forward end of the shut-tle isthe circular compartment 15 in which the spool or bobbin 1G is rotatablyconned by the plate 17 removably secured to the shuttle by means of thescrew 18 and having the projection 19 which engages the bore in the hubof the bobbin 16. At the rear portion of the shuttle is secured thescrew shaft 2O on which is journaled the take up drum 21 having on itshub the annular lip 22 furnished with the thread or twine passage 23,while between said drum and the side of the shuttle is located theretraction spring 24: secured at one end to the hub of said drum and atthe other to the pin 25 extending from the shuttle wall.

A supply of thread or twine a-z is wound on the spool or bobbin 16 andis then led through the thread passage 23 in the lip 22 of the tensiondrum and wound around the tension drum 21, the end being carried througha slot 10 in the lower portion of the wall or lip 10. rlhe strength ofthe spring 24 determines the retractive strain exerted on the thread ortwine a-a passing over the drum 21 and the frictional rcsistance offeredto the passage of the thread or twine through the thread channel in theperiphery of the drum 21 combined with retractive action of spring 24:tends to exert a tension on the thread or twine.

Shuttles of this nature are particularly designed for use in net makingmachines which form no part of the present invention but in which it isdesired to exert independent retraction of the 4strands 'forming theindividual knots. This action is made possible by the use of the shuttleherein described.

The hooked nose 8 and the hooks 11 and 12 are designed to be engaged byany suitable mechanisms respectively for moving the shuttle forward andfor lifting the same, while the socket 14 is designed to be engaged by aholding device whereby the shuttle is held stationary while the threador twine is drawn therefrom to form the preliminary loop of the knot. Assuch shuttle moving and holding devices form no part of thepresentinvention they are not herein illustrated.

Having thus described my invention I claim as new and desire to secureby Letters Patent- 1. A shuttle comprising a flat casing open mounted insaid casing and haring a thread guide adjacent its axis whereby thethread or twine from Said bobbin may be led through said thread passageof said drum 15 and then around said drum and through the thread slot ofthe shuttle casing as and for the purpose described.

BAVD H. SAUNDERS. Vitnesses:

H. J. MILLER, M. M. HARRINGTON.

at one side7 a flat plate pi\fotally mounted on a part of said casingand having a projection7 a rotatable Spool having an axial bore engagedby Said projection, and a 1 Spring retracted drum journaled on a shaftsecured in the side Wall. of said casing7 as described.

2. A shuttle comprising a casing having a thread slot in its lower Wall,a Spool or bobbin removably journaled in Said casina, and a springretracted drum rotatably Copies of this patent may be obtained for vecents each, by addressing the Commissioner of Patents. Washington, D. C.

